Ball point pen



FIG. 1 is a front elevation of a ball point pen showing my new designwith the writing point extended;

FIG. 2 is a front elevation of the ball point pen of FIG. 1 with thewriting point retracted;

FIG. 3 is a right side elevation thereof with the writing pointextended;

FIG. 4 is a left side elevation thereof with the writing pointretracted;

FIG. 5 is a rear elevation thereof with the writing point extended;

FIG. 6 is a rear elevation thereof with the writing point retracted;

FIG. 7 is a bottom (point) end view thereof;

FIG. 8 is a top end view thereof; and,

FIG. 9 is a perspective view thereof.

The ornamental design for a ball point pen, as shown and described.